Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PS 1018 1 found under Ring Retaining by Compair Inc. The National Stock Number assigned to this part is 5325014239061, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PS 1018 1.